package com.zhixin.zhixinwaimai.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zhixin.zhixinwaimai.common.R;
import com.zhixin.zhixinwaimai.entity.Employee;
import com.zhixin.zhixinwaimai.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.management.ValueExp;
import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class employeeController {
    @Autowired
    private EmployeeService employeeService;
    //登录
    @PostMapping("/login")
    public R<Employee> login(@RequestBody Employee employee, HttpServletRequest request){
        //1、将页面提交的密码进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名来查数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回失败结果
        if (emp == null) {
            return R.error("用户名不存在");
        }
        //4、比对密码，如果不一致则返回失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("密码错误");
        }
        //5、查看员工状态，如果已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }
        //6、登录成功，将用户id存入Session并返回成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);

    }
    //退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前员工登录的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    //新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());
        //设置初始密码，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        Long empId = (Long) request.getSession().getAttribute("employee");

//
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功");
    }
    //分页查询员工信息列表
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page={},pageSize={},name={}", page, pageSize, name);//打印日志

        //构造分页构造器
        Page pageInfo=new Page(page,pageSize);//第几页，一共分几页

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(!StringUtils.isEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }
    //编辑员工数据回显
    @GetMapping("/{id}")
    public R<Employee> updatedatabyid(@PathVariable long id){
        log.info("查询by id");
        Employee employee = employeeService.getById(id);
        //如果查到信息就返回
        if (employee!=null){
            return R.success(employee);
        }
        return R.error("没查到该员工信息");

    }
    //根据id修改状态
    @PutMapping
    public R<String> updatestatus(HttpServletRequest request, @RequestBody Employee employee){
        //再session获取更新人id,因为我们现在是管理员登录了，在线状态时session中就会有对应的当前用户信息
//        Long updateUser= (Long)request.getSession().getAttribute("employee");

//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(updateUser);

        employeeService.updateById(employee);
        return R.success("修改成功");
    }


}
